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Electrochemical biosensor based on silver nanoparticles-polydopamine-graphene nanocomposite for sensitive determination of adenine and guanine.
Talanta. 2013 Sep 30; 114:43-8.T

Abstract

A multifunctional Ag nanoparticles (AgNPs)-polydopamine (Pdop)@graphene (Gr) composite was prepared by a simple and mild procedure. Gr was easily coated with Pdop at room temperature and then AgNPs was deposited by mildly stirring. The nanocomposite was characterized by scanning electron microscope (SEM) and transmission electron microscope (TEM). Guanine and adenine as model moleculars were employed to study their electrochemical responses at the Ag-Pdop@Gr composite modified electrode, which showed more favorable electron transfer kinetics than Gr modified glassy carbon and AgNPs modified glassy carbon electrodes. The Ag-Pdop@Gr modified electrode exhibited linear ranges of 0.04-50 μM and 0.02-40 μM with detection limits of 4.0 nM and 2.0 nM for guanine and adenine, respectively. The developed method was applied for simultaneous determination of trace-level adenine and guanine in fish sperm. The results demonstrated that the AgNPs-Pdop@Gr nanocomposite was a promising substrate for the development of high-performance electrocatalysts for biosensing.

Authors+Show Affiliations

College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China. kejinghuang@163.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23953439

Citation

Huang, Ke-Jing, et al. "Electrochemical Biosensor Based On Silver Nanoparticles-polydopamine-graphene Nanocomposite for Sensitive Determination of Adenine and Guanine." Talanta, vol. 114, 2013, pp. 43-8.
Huang KJ, Wang L, Wang HB, et al. Electrochemical biosensor based on silver nanoparticles-polydopamine-graphene nanocomposite for sensitive determination of adenine and guanine. Talanta. 2013;114:43-8.
Huang, K. J., Wang, L., Wang, H. B., Gan, T., Wu, Y. Y., Li, J., & Liu, Y. M. (2013). Electrochemical biosensor based on silver nanoparticles-polydopamine-graphene nanocomposite for sensitive determination of adenine and guanine. Talanta, 114, 43-8. https://doi.org/10.1016/j.talanta.2013.04.017
Huang KJ, et al. Electrochemical Biosensor Based On Silver Nanoparticles-polydopamine-graphene Nanocomposite for Sensitive Determination of Adenine and Guanine. Talanta. 2013 Sep 30;114:43-8. PubMed PMID: 23953439.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical biosensor based on silver nanoparticles-polydopamine-graphene nanocomposite for sensitive determination of adenine and guanine. AU - Huang,Ke-Jing, AU - Wang,Lan, AU - Wang,Hai-Bo, AU - Gan,Tian, AU - Wu,Ying-Ying, AU - Li,Jing, AU - Liu,Yan-Ming, Y1 - 2013/04/12/ PY - 2013/01/17/received PY - 2013/03/29/revised PY - 2013/04/06/accepted PY - 2013/8/20/entrez PY - 2013/8/21/pubmed PY - 2014/3/13/medline KW - Adenine KW - Ag nanoparticles–polydopamine@graphene nanocomposite KW - Biosensing KW - Electrochemical sensor KW - Guanine KW - Voltammetry SP - 43 EP - 8 JF - Talanta JO - Talanta VL - 114 N2 - A multifunctional Ag nanoparticles (AgNPs)-polydopamine (Pdop)@graphene (Gr) composite was prepared by a simple and mild procedure. Gr was easily coated with Pdop at room temperature and then AgNPs was deposited by mildly stirring. The nanocomposite was characterized by scanning electron microscope (SEM) and transmission electron microscope (TEM). Guanine and adenine as model moleculars were employed to study their electrochemical responses at the Ag-Pdop@Gr composite modified electrode, which showed more favorable electron transfer kinetics than Gr modified glassy carbon and AgNPs modified glassy carbon electrodes. The Ag-Pdop@Gr modified electrode exhibited linear ranges of 0.04-50 μM and 0.02-40 μM with detection limits of 4.0 nM and 2.0 nM for guanine and adenine, respectively. The developed method was applied for simultaneous determination of trace-level adenine and guanine in fish sperm. The results demonstrated that the AgNPs-Pdop@Gr nanocomposite was a promising substrate for the development of high-performance electrocatalysts for biosensing. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/23953439/Electrochemical_biosensor_based_on_silver_nanoparticles_polydopamine_graphene_nanocomposite_for_sensitive_determination_of_adenine_and_guanine_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(13)00299-3 DB - PRIME DP - Unbound Medicine ER -